The purpose of this patchset is to add drive-strength-microamp support in meson pinconf driver. This is a new feature that was added on the g12a. It is critical for us to support this since many functions are failing with default pad drive-strength.
The value achievable by the SoC are 500uA, 2500uA, 3000uA and 4000uA and the DT property 'drive-strength-microamp' is expressed in uA. So this patch add another generic property "drive-strength-microamp". The change to do so would be minimal and could be benefit to other platforms later on.
it's backport from linux : https://lore.kernel.org/lkml/20190514082652.20686-1-glaroque@baylibre.com/
Cheers Guillaume
Guillaume La Roque (3): dm: pinctrl: Add driver-strength-microamp property pinctrl: meson: add support of drive-strength-microamp pinctrl: meson: g12a: add DS bank value
drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c | 1 + drivers/pinctrl/meson/pinctrl-meson-g12a.c | 20 ++++---- drivers/pinctrl/meson/pinctrl-meson.c | 46 ++++++++++++++++++- drivers/pinctrl/meson/pinctrl-meson.h | 43 +++++++++++------ include/dm/pinctrl.h | 3 ++ 5 files changed, 89 insertions(+), 24 deletions(-)